High-speed visible light communication systems

Grobe, Liane; Paraskevopoulos, A.; Hilt, J. Zach; Schulz, Dominic; Lassak, Friedrich; Hartlieb, Florian; Kottke, Christoph; Jungnickel, Volker; Langer, Klaus-Dieter

doi:10.1109/mcom.2013.6685758

Cited by 407 publications

(184 citation statements)

References 12 publications

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“…For example, InGaN-based white-light emitting diodes are replacing older light bulb technologies for home and street illuminations while InGaN laser diodes are used for optical data storage and are being considered for future ultra-efficient lighting [1]. An emerging application for InGaN-based white LEDs is visible light communications (VLC), which has been gathering a lot of attention recently [2,3]. Because practical InGaN optoelectronic sources do not yet cover the entire visible spectrum (the device efficiency drops continuously for wavelengths above 500 nm [4]), a blue-emitting GaN source often needs to be combined with color-converting materials to access longer wavelengths, or generate white light.…”

Section: Introductionmentioning

confidence: 99%

Visible light communication using InGaN optical sources with AlInGaP nanomembrane down-converters

Santos¹,

Rajbhandari²,

Tsonev³

et al. 2016

Opt. Express

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Abstract:We report free space visible light communication using InGaN sources, namely micro-LEDs and a laser diode, down-converted by a redemitting AlInGaP multi-quantum-well nanomembrane. In the case of micro-LEDs, the AlInGaP nanomembrane is capillary-bonded between the sapphire window of a micro-LED array and a hemispherical sapphire lens to provide an integrated optical source. The sapphire lens improves the extraction efficiency of the color-converted light. For the case of the downconverted laser diode, one side of the nanomembrane is bonded to a sapphire lens and the other side optionally onto a dielectric mirror; this nanomembrane-lens structure is remotely excited by the laser diode. Data transmission up to 870 Mb/s using pulse amplitude modulation (PAM) with fractionally spaced decision feedback equalizer is demonstrated for the micro-LED-integrated nanomembrane. A data rate of 1.2 Gb/s is achieved using orthogonal frequency division multiplexing (ODFM) with the laser diode pumped sample.

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Section: Introductionmentioning

confidence: 99%

Visible light communication using InGaN optical sources with AlInGaP nanomembrane down-converters

Santos¹,

Rajbhandari²,

Tsonev³

et al. 2016

Opt. Express

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“…VLC is sensitive to sunlight and is not able to work long range without LOS. Since VLC coverage is LOS limited [84,191], this is known as LOS blocking [192]. With poor performance in non-line-of-sight scenarios, VLC networks fail to provide convenient UL coverage at the current state-of-the-art, and each AP illuminates only a small confined cell compared to cellular RF networks [192].…”

Section: Other Technologiesmentioning

confidence: 99%

IoT’s Tiny Steps towards 5G: Telco’s Perspective

Cero¹,

Husić

Baraković

2017

Symmetry

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Abstract:The numerous and diverse applications of the Internet of Things (IoT) have the potential to change all areas of daily life of individuals, businesses, and society as a whole. The vision of a pervasive IoT spans a wide range of application domains and addresses the enabling technologies needed to meet the performance requirements of various IoT applications. In order to accomplish this vision, this paper aims to provide an analysis of literature in order to propose a new classification of IoT applications, specify and prioritize performance requirements of such IoT application classes, and give an insight into state-of-the-art technologies used to meet these requirements, all from telco's perspective. A deep and comprehensive understanding of the scope and classification of IoT applications is an essential precondition for determining their performance requirements with the overall goal of defining the enabling technologies towards fifth generation (5G) networks, while avoiding over-specification and high costs. Given the fact that this paper presents an overview of current research for the given topic, it also targets the research community and other stakeholders interested in this contemporary and attractive field for the purpose of recognizing research gaps and recommending new research directions.

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“…The first mobile VLC system was reported for typical indoor distances between 2 m and 20 m with data rates decreasing with distance from approx. 500 Mbit/s to 100 Mbit/s in [40].…”

Section: Indoor Communicationsmentioning

confidence: 99%